Polishing-machine.



J. ZYWIOKI.

POLISHING MACHINE.

APPLICATION FILED JUNE 20, 1912.

1,833,046. Patented Dec. 30, 1913.

2 BHEETB-SHEET l.

COLUMBIA PLANOORAPH co.,WAs|-1|NGToN. n cv J. ZYWIOKI.

POLISHING MACHINE.

APPLICATION FILED JUNE 20, 1912.

1,083,046. Patented Dec. 30, 1913.

. 2 SHEETS-SHEET 2.

COLUMBIA PLANOGRAPH cc., WASHINGTON. Dv c.

E STATES POLISHING-MACHINE.

Specification of Letters Patent.

Patented Dec. 30,1913.

Application filed June 20, 1912. Serial No. 704,710.

To all whom it may concern Be it known that I, JAN ZYwIoIu, a subj ect of the Czar of Russia, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Polishing-Machines and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

This invention relates to a polishing machine which is constructed to grasp and re lease articles to be polished, the grasping and releasing devices being arranged in series and secured on a revolving structure so that when it revolves, the structure pre sents the articles successively to a polishing wheel or the like. The grasping and releasing devices rotate on their own axes and thereby submit every portion of the face of the article to be polished to the action of the polishing wheel.

The invention further consists of means for automatically closing and opening the grasping means to permit the insertion and removal ofthe articles placed in the machine.

The invention also provides an adjusting mechanism which regulates the revolving structure in its relation to the polishing wheel so that as a wheel wears down, the re volving structure can be advanced toward it.

Another feature of the machine is the driving mechanism for rotating the individual grasping devices and revolving the structure and for stopping and starting either of the revolutions without interfering with the other.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a side view of the machine. Fig. 2 is a cross-section of the carriage of the machine. Fig. 3 is a perspective view of part of the latch of the stopping and starting means. Fig. 4: is a front view of the machine. Fig. 5 is adetail section of one of the grasping devices, and Fig. 6 is a similar view, slightly enlarged, showing the grasping device open to release an article.

The machine is provided with a base 10 of any desired form having slide-ways 11 at the top, which slide-ways are arranged to support a carriage 12 so that it can slide, the base having a screw 13 therein, the screw having a hand-wheel 14 or other means for rotating it, the screw 13 being fitted into a screw-threaded nut 15 fastened to the carriage. The carriage 12 is provided with bearings in which rotates a hollow shaft 16 and within the hollow shaft is a shaft 17. On the hollow shaft is mounted a gear-wheel 18 at its forward end, and at its back end is a fast pulley 19 and a loose pulley 20. On the back end of the shaft 17 is a fast pulley 21 and a loose pulley 22. The sets of pulleys provide for the operation of the hollow shaft 16 and the shaft 17 independent of each other for purposes to be hereinafter described. At the front of the shaft 17 is a wheel 23 which, with a disk 24:, forms a revolving structure, the disk 24 being loose on the hollow shaft 16.

Rods 25 rotate in the wheel 23 and the disk 24, the rods having gears 17 on them, these gears being in mesh with the gearwheel 18. The rods 25 extend beyond the wheel and the disk, the rear projecting part of each rod being encircled by a spring 26, which spring abuts on the disk and on a collar 27 to normally push back on the rod. The wheel 23 has a set of sleeves 28 projecting from its front face, the rods 25 passing through the sleeves. The inside of each sleeve is tapered and the end of each rod is tapered to fit the sleeve, the rod thus having an enlarged part 29, see Figs. 5 and 6. The forward ends of the rods are split so that the enlarged ends form spring heads made of material that is of a springy nature in order that they will automatically spread or open out when the rods are pushed forward in the sleeves. The spring heads are recessed as at 30 with a marginal bead 31 to hold an article to be polished. The recesses can be of any desired form to hold different articles, but I have illustrated a set of heads adapted to hold buttons 32.

Each of the sets of pulleys 19 and 20 and 21 and 22 are provided with belt-shifters which consist of the belt-engaging devices 33 connected to their respective rods 34, which rods pass along the body of the carriage and slide in bearings 35 and have their front ends provided with a notch 36 shown in Fig. 3-. Each of the rods 34 is provided with a handle 37 by means of which it can be moved forward so that its notch is engaged by the nose 38 of a latch 39, the two latches being arranged to slide on the top of the carriage, the latches each having a handle 40 which can be suitably disposed, but they are shown in the drawings, one in a horizontal position, and the other in a vertical position so that they can be quickly differentiated and recognized by the operator when he wants to operate one and not the other. Springs 41 hold the latches 39 in their operative positions, and springs 42 normally slide the belt-shifters rearwardly, when the latches 39 release them, so that the belts 43 are quickly moved back to the loose pulleys and 22 as will be evident. Suitable tripping blocks 44 and 45 are mounted to any desired number, being usually fastened to the carriage, and being so disposed that they are engaged by the back ends of the rods 25 to move the rods forward against the action of the springs 26.

The operation of the machine is as follows. The operator moves the handles 37 forward to slide the belt-shifters and thus bring the belts 43 in engagement wit-h the fixed pulleys 19 and 21. The shaft 17 is rotated in one direction and the hollow shaft 16 is rotated in the opposite direction, and in the structure shown in the drawings, the revolving structure on the shaft 17 moves to the right or clock-wise, and the hollow shaft 16 moves in the reverse direction. This causes the revolving structure to rotate, carrying with it the grasping devices on the ends of the rods 25, the rods being rotated rapidly by reason of their respective gears 47 engaging the teeth of the gearwheel 18 so that the holders or spring heads 29 at the ends of the rods 25 are twirled while they are moving with the revolving structure. As each rod approaches the tripping block 44, the rod engages the inclined face of the tripping block and is pushed forward so that the spring head is in the position shown in Fig. 6, and a button is inserted in the recess 30 and held against the recess by the operators finger until the rod passes beyond the tripping block 44, when the spring 26 snaps it into place and tightly clamps the button. This provides for a successive feeding of blanks of buttons or similar articles to the grasping devices. The buttons are thus carried down and successively subjected to treatment by a suitable polishing wheel 46 or similar polishing mechanism, the wheel being rotated and driven by mechanism which is not shown, and which can be of any desired type. After the buttons have passed the polishing wheel 46 they are released by reason of the rods being successively forced forward by the inclined face of the tripping block 45,

the head 29 again springs apart by reason of its projecting from the sleeve 28, and the button 32 drops from the holder as shown to the left in Fig. 4. It will thus be seen that the buttons are fed to the holders opposite the block 44 and are automatically released gear-wheel 18 can be stopped, if desired, by

manipulating its respective handle 40 to release its latch and permit the spring to operate its respective belt-shifter. The rotation of the rods 25 can be assured at all times by making the gear-wheel 18 wide enough to engage each gear 47 when it is either slid forward or backward, as will be understood. If more pressure is desired on the polishing wheel, or if the wheel wears away, the hand-wheel 14 can be turned to operate the screw 13 which in turn forces the nut 15 forward and with it the carriage 12 so that the whole mechanism is advanced toward the wheel 46.

Having thus described my invention, what I claim is 1. A polishing machine comprising abase, a carriage sliding on the base, means for moving the carriage on the base, a rotating structure, means for connecting the rotating structure with its source of power, a springoperated means for holding the connecting means inoperative, a restraining means for normally holding the spring-operated means and for tripping the same, and grasping devices on the rotating structure.

2. A polishing machine comprising a. base, a carriage sliding on the base, means for moving the carriage on the base, a hollow shaft rotating in the carriage, a shaft within the hollow shaft, a gear-wheel on the hollow shaft, a set of grasping devices held on the rotating shaft and having teeth in mesh with the gear-wheel, spring means for disconnecting the hollow shaft from its source of power, spring means for disconnecting the second shaft from its source of power, manually operated tripping means for normally restraining and for releasing the disconnecting means of the hollow shaft, and manually operated tripping means for normally restraining and for releasing the disconnecting'means of the second shaft. 7

3. In a polishing machine, a support, a hollow shaft rotating in the support, a second shaft within the hollow shaft, a rotating structure on the second shaft, grasping de vices on the rotating structure, a fixed pulley on the hollow shaft, a fixed pulley on the second shaft, a loose pulley on the hollow "sis for

shaft, a loose pulley on the second shaft, a belt shifter adjacent to the hollow shaft, and a belt shifter adjacent to the second shaft, rods connected to the belt shifters and sliding on the support substantially parallel with the shafts, springs bearing on the rods to normally force them in one direction, latches for the rods, the latches for the rods being separate and acting to hold the rods 10 normally against movement by the springs,

and handles on the latches for their manipulation.

In testimony, that I claim the foregoing, I have hereunto set my hand this 18th day of May, 1912.

'JAN ZYWICKI.

Witnesses:

WM. H. CAMFIELD, M. A. JOHNSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

